--Have you ever been here before? ---Well, I once _________ here for four years. Those days are really unforgettable.
________ an astronaut into space in 2003, China became the third country to send a woman into space in June, 2012.
________ themselves, the employees in this company usually have a coffee or tea during their break time.
For further details about our newly developed products ________ our company's website.
Born in a remote village ________ by endless mountains in Yunnan, I always dream of ________ the outside world.
He is said ________ college in America, studying music.